Last week, Tungsten (AIM: TUNG) became the latest publicly traded provider in the procurement and supplier network marketplace. The deal is fascinating on several levels, one being that it was put together by a financial group with a long track record of success in other markets outside of eProcurement, e-Invoicing, A/P automation, and supplier network technology. This financial group was also new to this market, and saw an opportunity to merge an e-invoicing network provider with a bank and some additional analytical capability.